动态创建Spring Bean

    GenericApplicationContext ctx = new GenericApplicationContext(); 
     
    BeanDefinitionBuilder builderA = BeanDefinitionBuilder 
       .rootBeanDefinition(BeanA.class) 
        .addPropertyValue("name", "Joe"); 
    ctx.registerBeanDefinition("bean-a", builderA.getBeanDefinition()); 
      
    BeanDefinitionBuilder builderB = BeanDefinitionBuilder.rootBeanDefinition(BeanB.class) 
       .addPropertyReference("refA", "bean-a"); 
    ctx.registerBeanDefinition("bean-b", builderB.getBeanDefinition()); 
      
    ctx.getBean("bean-b");  



上面的例子动态创建了两个 bean 定义，第二个Bean 引用了第一个Bean。